F
======================================================================
FAIL: Doctest: ../../nltk/test/discourse.doctest
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 2112, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for ../../nltk/test/discourse.doctest
  File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 0, in doctest

----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 16, in ../../nltk/test/discourse.doctest
Failed example:
    dt = DiscourseTester(['a boxer walks', 'every boxer chases a girl'])
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[1]>", line 1, in <module>
      File "/Volumes/Data/nltk/trunk/nltk/nltk/inference/discourse.py", line 81, in __init__
        self._parser = parse.load_earley(self._gramfile)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/parse/featurechart.py", line 46, in load_earley
        grammar = nltk.data.load(filename, cache=cache, verbose=verbose)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/data.py", line 444, in load
        resource_val = cfg.parse_fcfg(_open(resource_url).read())
      File "/Volumes/Data/nltk/trunk/nltk/nltk/cfg.py", line 764, in parse_fcfg
        (linenum+1, line, e))
    ValueError: Unable to parse line 25: NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
    Error parsing feature structure
        NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
                            ^ Expected logic expression
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 23, in ../../nltk/test/discourse.doctest
Failed example:
    dt.sentences()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[2]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 31, in ../../nltk/test/discourse.doctest
Failed example:
    dt.grammar() # doctest: +ELLIPSIS
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[3]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 52, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[4]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 75, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings('a boxer walks')
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[5]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 87, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings(threaded=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[6]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 106, in ../../nltk/test/discourse.doctest
Failed example:
    dt.models('d1')
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[7]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 164, in ../../nltk/test/discourse.doctest
Failed example:
    dt.add_sentence('John is a boxer')
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[8]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 165, in ../../nltk/test/discourse.doctest
Failed example:
    dt.sentences()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[9]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 173, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[10]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 189, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings(threaded=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[11]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 202, in ../../nltk/test/discourse.doctest
Failed example:
    thread = dt.expand_threads('d6')
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[12]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 203, in ../../nltk/test/discourse.doctest
Failed example:
    for rid, reading in thread:
        print rid, str(reading)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[13]>", line 1, in <module>
    NameError: name 'thread' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 211, in ../../nltk/test/discourse.doctest
Failed example:
    dt = DiscourseTester(['A student dances', 'Every student is a person'])
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[14]>", line 1, in <module>
      File "/Volumes/Data/nltk/trunk/nltk/nltk/inference/discourse.py", line 81, in __init__
        self._parser = parse.load_earley(self._gramfile)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/parse/featurechart.py", line 46, in load_earley
        grammar = nltk.data.load(filename, cache=cache, verbose=verbose)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/data.py", line 444, in load
        resource_val = cfg.parse_fcfg(_open(resource_url).read())
      File "/Volumes/Data/nltk/trunk/nltk/nltk/cfg.py", line 764, in parse_fcfg
        (linenum+1, line, e))
    ValueError: Unable to parse line 25: NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
    Error parsing feature structure
        NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
                            ^ Expected logic expression
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 217, in ../../nltk/test/discourse.doctest
Failed example:
    dt.add_sentence('No person dances', consistchk=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[15]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 223, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[16]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 239, in ../../nltk/test/discourse.doctest
Failed example:
    dt.retract_sentence('No person dances', quiet=False)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[17]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 246, in ../../nltk/test/discourse.doctest
Failed example:
    dt.models()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[18]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 279, in ../../nltk/test/discourse.doctest
Failed example:
    dt.add_sentence('A person dances', informchk=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[19]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 286, in ../../nltk/test/discourse.doctest
Failed example:
    dt.models()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[20]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 321, in ../../nltk/test/discourse.doctest
Failed example:
    dt = DiscourseTester(['Vincent is a boxer', 'Fido is a boxer', 'Vincent is married', 'Fido barks'])
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[21]>", line 1, in <module>
      File "/Volumes/Data/nltk/trunk/nltk/nltk/inference/discourse.py", line 81, in __init__
        self._parser = parse.load_earley(self._gramfile)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/parse/featurechart.py", line 46, in load_earley
        grammar = nltk.data.load(filename, cache=cache, verbose=verbose)
      File "/Volumes/Data/nltk/trunk/nltk/nltk/data.py", line 444, in load
        resource_val = cfg.parse_fcfg(_open(resource_url).read())
      File "/Volumes/Data/nltk/trunk/nltk/nltk/cfg.py", line 764, in parse_fcfg
        (linenum+1, line, e))
    ValueError: Unable to parse line 25: NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
    Error parsing feature structure
        NP[-loc,num=sg,sem=<\Q. (not some x. ((person x) and (Q x)))>] -> 'nobody' | 'Nobody'
                            ^ Expected logic expression
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 322, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[22]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 344, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings(threaded=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[23]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 355, in ../../nltk/test/discourse.doctest
Failed example:
    bg = nltk.data.load('grammars/background1.fol')
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[25]>", line 1, in <module>
      File "/Volumes/Data/nltk/trunk/nltk/nltk/data.py", line 446, in load
        resource_val = sem.parse_fol(_open(resource_url).read())
      File "/Volumes/Data/nltk/trunk/nltk/nltk/sem/util.py", line 187, in parse_fol
        raise ValueError, 'Unable to parse line %s: %s' % (linenum, line)
    ValueError: Unable to parse line 11: all x. ((boxerdog x) implies (dog x))
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 356, in ../../nltk/test/discourse.doctest
Failed example:
    dt.add_background(bg)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[26]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 357, in ../../nltk/test/discourse.doctest
Failed example:
    dt.background()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[27]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 372, in ../../nltk/test/discourse.doctest
Failed example:
    dt.readings(filter=True)
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[28]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 377, in ../../nltk/test/discourse.doctest
Failed example:
    dt.models()
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[29]>", line 1, in <module>
    NameError: name 'dt' is not defined
----------------------------------------------------------------------
File "/Volumes/Data/nltk/trunk/nltk/nltk/test/discourse.doctest", line 487, in ../../nltk/test/discourse.doctest
Failed example:
    mybg = parse_fol(open('background1.fol').read())
Exception raised:
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/doctest.py", line 1212, in __run
        compileflags, 1) in test.globs
      File "<doctest ../../nltk/test/discourse.doctest[35]>", line 1, in <module>
      File "/Volumes/Data/nltk/trunk/nltk/nltk/inference/discourse.py", line 397, in parse_fol
        except Error:
    NameError: global name 'Error' is not defined


----------------------------------------------------------------------
Ran 1 test in 6.191s

FAILED (failures=1)